2018 Grand Design Momentum Problems, Complaints & Recalls

Source: NHTSA · Updated May 14, 2026 · 7 owner complaints analyzed

Compared with other Momentum years
Not enough data 9th of 13 for complaints
NHTSA crash rating
Not rated

Owners have filed 7 complaints with NHTSA about the 2018 Grand Design Momentum. That ranks 9th out of 13 Momentum model years for complaints. The most reported problem area is structure (6 complaints, 86%). There are 2 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2018 Grand Design Momentum problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Structure6
Unknown or Other4
Suspension3
Latches/locks/linkages2
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Structure686%———
Unknown or Other457%———
Suspension343%———
Latches/locks/linkages229%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2024, with 4 complaints
2024: 4202442025: 2202522026: 120261

n = 7 complaints · Source: NHTSA

2018 Grand Design Momentum recalls (2)

Tap a recall to see the problem, the risk and the fix.

Equipment:appliance:refrigeratorJan 28, 2022 · NHTSA campaign 22V038000 · 43,421 vehicles

Problem: Grand Design RV, LLC (Grand Design) is recalling certain 2013-2021 Momentum, Solitude, and Reflection recreational vehicles. A 110-volt wire in the refrigerator cabinet may be improperly secured, which could result in the wire contacting the refrigerator cooling unit, causing an electrical arc.

Risk: An electrical arc increases the risk of a fire.

Fix: Dealers will inspect and replace any damaged wiring, and properly secure the wires, free of charge. Owner notification letters were mailed on February 21, 2022. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910026.

Equipment:recreational vehicle/trailer:lpg systemsMay 26, 2021 · NHTSA campaign 21V393000 · 55,508 vehicles

Problem: Grand Design RV, LLC (Grand Design) is recalling certain 2016-2021 Imagine, Transcend, and Momentum travel trailers. The LP regulator that controls the LP gas pressure may fail, allowing excessive gas pressure that causes the appliance flame to increase.

Risk: Excessive gas pressure and a larger than intended appliance flame can increase the risk of a fire.

Fix: Dealers will replace the LP regulator, free of charge. Owner notification letters were mailed June 24, 2021. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910023.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Frame Flex on Grand Design Fifth Wheel Recreational Trailers (PE24029) — opened Oct 9, 2024, still open.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

On the driver side of the 2018 Momentum Toy Hauler cracked in two locations above the center leaf spring holder. This issue occurred on May 1, 2025. While pulling out of a shop after having the leaf spring holders replaced the axle traveled through a small depression on the ground causing the frame…

Suspension · received May 14, 2026 · NHTSA complaint 11737865

I am writing to formally report a series of serious structural concerns we are experiencing with our Grand Design Momentum 349M fifth wheel/toy hauler, which appear to be related to excessive frame flex/failure or upper deck instability. These issues began toward the end of last year and have…

Unknown or Other · received May 27, 2025 · NHTSA complaint 11663155

I started noticing rub marks on the interior walls next to the night stands after the last few uses, and they appear to be getting worse after each use. I was made aware of the deck/frame flex issues the some GD fifth wheels are having and was referred to TSB 24-001. My RV is experiencing the exact…

Unknown or Other · received Apr 16, 2025 · NHTSA complaint 11654890

Driver side rear leaf spring hanger broke while under tow.

Suspension · received Nov 27, 2024 · NHTSA complaint 11627645

Fifth wheel pin box busted loose weld failed trailer about came off the truck this trailer weighs 16,000 plus pounds it was very unsafe the manufacturer knows of this issue The RV started to rip itself apart leave spring shackles busted

Suspension · received Mar 18, 2024 · NHTSA complaint 11578001

Other Grand Design Momentum years

← 2017 Momentum · 2019 Momentum →

See all Grand Design Momentum problems by year, every Grand Design model, or the VIN decoder.

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Frequently asked questions

What are the most common problems with the 2018 Grand Design Momentum?

Owners most often report structure, unknown or other, suspension problems. The top one, structure, accounts for 6 complaints.

Was there a recall on the 2018 Grand Design Momentum?

Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2018 Grand Design Momentum a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Momentum model years, the 2018 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.